Diflubenzuron 480 g/l SC
Insect growth regulator which is effective on a wide variety of insect pests, predominately from the families Lepidoptera and Diptera, used to protect many agricultural crops like cereals crops, bean crops, vegetables, fruit trees, ornamentals and other.
- SPECIFICATION
- APPLICATION
Composition: 480 g/l Diflubenzuron
Chemical group
Benzoylurea
Type of formulation
Suspension Concentrate (SC)
Mode of action: Diflubenzuron 480 SC is an insect growth regulator which is effective on a widevariety of insect pests, predominately from the families Lepidoptera andDiptera. Because of its mode of action, which results in a disruption ofthe normal molting process of the insect larvae, the action of Diflubenzuron 480 SC isslow and several days may elapse before the full effect is seen.
Diflubenzuron 480 SC interferes with the formation of chitin during the larval stages of insect development, as well as with the ovicidal activities (directand transovarial - “through the female").
Diflubenzuron 480 SC is predominantly a stomach poison. The compound shows ovicidal activity, through contact, by treatment of thefemale adult.
Diflubenzuron 480 SC does not act immediately. Affected larvae behave normally until a moult is due, and death occurs at moulting or pupation.
Diflubenzuron 480 SC is not effective against adult insects. In general, insect parasites and predators are not affected by the product.
Diflubenzuron 480 SC treatments should be directed against the larval stages of the target species, and sprays should be applied as early as possible,preferably before or during egg deposition.
Diflubenzuron 480 SC has minimal activity on the beneficial insect complex.
APPLICATION
Good spray cover is essential to achieve optimum control, especially the undersides of l eaves and on large trees where there is a full leaf canopy. Apply the recommended water volume using a suitable sprayer correctly set to give good spray cover. Do not leave the spray liquid in the sprayer for long periods (e.g. during meals or overnight).
ADJUVANT USAGE: Always use oil (1 to 2 L in the work solution) with Diflubenzuron 480 SC ifconditions are favorable for water evaporation (e.g. high air temperature and/or lowhumidity
DOSAGE RATE
Diflubenzuron 480 SCis applied in the following dosages, depending on crop and pest.
POTATO
Against Potato tuber mothlarvae(Phthorimaea operculla), with300 ml per ha in minimum 600 l/ha.
Timing:
First application: just before first flowering.
Second application: just after first flowering.
Third application: 14 days after the second application.
If infestations are high, a 4th application can be made 14 dayslater.
Maximum number of treatments: 4
Harvest interval:9 days
RICE
Rice water weevil - for drill seeded; dry seeded; or water seeded, delayed flood rice.
Make a single application of Diflubenzuron 480 SCin dose 800 ml to 1.2 L/ha to control larvae when adultinfestations reach economic threshold and/or at initial oviposition, usually within a timeframe of 2-5 days after permanent flood establishment. If adult weevil infestations are historically high and/or migration into the field is prolonged, use the higher application rate.
Maximum number of treatments: 1 Harvest interval:60 days
SOYBEANS AND PEANUTS
For the control of bean caterpillar, mexican bean beetle and green clover worm:
Diflubenzuron 480 SC will control larvae ofvelvetbean caterpillar, Mexican bean beetle and greencloverworm.Apply Diflubenzuron 480 SC the rate 300 – 500 ml/ha. Make application whenlarvae are small (less than 1.25 cm) to give greater controland minimum insect damage toleaves. Repeat application if damaging numbers reappear. Diflubenzuron 480 SC may be applied at the lower rate (300 ml/ha) to prevent velvetbean caterpillar build-up when the vegetative growth ofsoybeans is completed and as pod formation begins.
For the control of beet and fall armyworm and soybean looper:
To controllarvae of beet and fall armyworm and to provide suppression ofsoybean looper, apply 500 ml/ha of Diflubenzuron 480 SC. Application must be made when worms are small before the3rd instar and before populations build.
Grasshoppers:
For optimum results, apply 500 ml/ha of Diflubenzuron 480 SC when the majority of infesting grasshoppers have reachedthe 2nd to 3rd instar nymphal stage of development. Diflubenzuron 480 SC is noteffective in controlling grasshoppers once they reach the adultstage. Since Diflubenzuron 480 SC is an insect growth regulator, grasshoppersmust feed on Diflubenzuron 480 SC and then molt before populations arereduced. Thus initial signs of control may not be seen until severaldays after treatment. If a large influx from neighboring fields shouldoccur, the time to reduce that population may not be short enoughto minimize extensive foliage feeding. A tank mix with a knockdowninsecticide is recommended under these conditions.
Maximum number of treatments: 2
Harvest interval:21 days
COTTON
Beet armyworm:
Early season (before first bloom):For early infestations onyoung cotton, Diflubenzuron 480 SC should be applied at the first sign ofbeet armyworm activity (2 egg masses or hatch outs/10 m ofrow) with 300 to 500 ml/ha in multiple applications, either asdirected or broadcast spray.
Multiple applications of Diflubenzuron 480 SC will provide acceptable beetarmyworm control and because it has little activity on beneficialinsects (parasites and predators) and has good persistence, willhelp prevent populations of beet armyworm from building uplater in the growing season. Use of Diflubenzuron 480 SC in this way allowsfor more complete coverage of new foliage during the period ofrapid vegetative growth.
Mid season:Starting around first bloom and through mid-bloom, apply 500 ml/ha ofDiflubenzuron 480 SC per acre.
Late season:After mid-bloom and prior to 14 days beforeharvest, apply 700 ml/ha of Diflubenzuron 480 SC. The higherapplication rate should be used on more advanced cotton orunder conditions of greater larval pressure
Do not exceed 3 applications of Diflubenzuron 480 SC post boll opening.
Fall armyworm, yellowstriped armyworm, southern armyworm, soybean looper, cabbage looper and saltmarsh caterpillar:
For larvae of fall armyworm,yellowstriped armyworm and southern armyworm, and larval suppression of soybean looper, cabbage looper and saltmarshcaterpillar, apply 500 – 700 ml/ha ofDiflubenzuron 480 SC. Applicationshould be made during early stages of larvaldevelopment.
Boll weevil:
Early season (before first bloom):Diflubenzuron 480 SC will controlboll weevil by suppressing reproduction. Apply 500 – 700 ml/ha ofDiflubenzuron 480 SC in combination with 2 quarts of emulsified cottonseed oil, vegetable oil, or paraffinic crop oil. For best suppression of boll weevil reproduction, make first application at pinhead square stage of cotton growth when overwintering boll weevils are entering the fields. Repeat treatments should allow minimum of 7 days between application.
Late season:Diflubenzuron 480 SC will reduce the numbers of weevilsthat emerge in the following spring if applications are made when adult weevils are going into diapause to overwinter. Apply when cotton plant has reached full vegetative growth or when it begins blooming out the top. At least 2, but not more than 3, applications at 7 to 14 day intervals should bemade.
Diflubenzuron 480 SC does not kill the adult boll weevils, however, eggs deposited by affected female weevils will not hatch, thus limiting reproduction. The control of egg hatch and larval development within the square prevents its shedding and will then allow normal boll development. After initial treatment of the female weevil, 7 to 10 days are required before non-hatching eggs are laid; however,once affected, non-hatching eggs will be laid for approximately 10 days, and longer if the female encounters more Diflubenzuron 480 SC. Thus treatearly and use multiple applications.
Grasshoppers:
For optimum results, apply 500 ml/ha of Diflubenzuron 480 SC when themajority of infesting grasshoppers have reached the 2nd to 3rdinstar nymphal stage of development. Diflubenzuron 480 SC is not effective incontrolling grasshoppers once they reach the adult stage. SinceDiflubenzuron 480 SC is an insect growth regulator, grasshoppers must feed onDiflubenzuron 480 SC and then molt before populations are reduced. Thus initialsigns of control may not be seen until several days after treatment.
Maximum number of treatments: 6 per crop.
Harvest interval: 14 days
BARLEY, OATS, TRITICALE AND WHEAT
For the control of Grasshopper – Apply with 300 – 500 ml/ha. For best results, apply when the majority of infesting grasshoppers have reached the 2nd to 3rd nymphal stage of development. Diflubenzuron 480 SC is not effective in controlling grasshoppers once they reach the adult stage. If a large influx from neighboring fields should occur, the time to reduce that population may not be short enough to minimize extensive foliage feeding; a tank mix with a knockdown insecticide is recommended under these conditions.
For the control of Cereal leaf beetle – Apply with 500 ml/ha. For best results, apply at first sign of egg laying. Do not apply if infestation has advanced in to later in star larvae.
Maximum number of treatments: 1 per crop.
Harvest interval:
Do not harvest grain and straw within 50 days of application.
Do not harvest forage within 3 days of application.
Do not harvest hay within 15 days of application.
APPLES AND PEARS
For the control of Codling Moth, Bud moth (reduction), Fruit Tree Tortrix, Rust Mites (reduction), Clouded Drab Moth (reduction).
Rate of Use: Apply 300 ml/ha in a minimum of 500 litres of water.
Timing
Codling Moth: Apply according to pheromone trap numbers – i.e. during the period between egg lay and the beginning of egg hatch which is usually 7 days before most other standard treatments are applied. A second application should be made 4 weeks later if moth numbers remain high or if it is likely there will be a second generation.
Fruit Tree Tortrix: Apply between egg lay and egg hatch according to pheromone trap numbers as for Codling Moth. Repeat 4 weeks later if moth numbers remain high.
Bud Moth: Apply in late July / August. When used for the control of codling moth, some reduction in Bud Moth will occur.
Clouded Drab Moth: If necessary, spray at petal fall.
Rust Mites: The use of Diflubenzuron 480 SCin the spray programme will provide a useful reduction of Rust Mites.
Maximum number of treatments: 2 post-blossom per crop.
Harvest interval: 14 days Other specific restrictions: The maximum concentration must not exceed 300 ml product /500 litres water.
STONE FRUITS
For the control of Winter and Tortrix Moths and Plum Fruit Moth and the reduction of Rust Mites.
Rate of Use: Apply 300 ml/ha in a minimum of 500 liters of water.
Timing
Winter and Tortrix Moth: Apply at the late white bud stage.
Plum Fruit Moth: Apply mid to late June or according to pheromone trap numbers – i.e. during the period between egg lay and the beginning of egg hatch which is usually 7 days before most other standard treatments are applied. A second application should be made 3 – 4 weeks later if moth numbers remain high.
Rust Mites: The use of Diflubenzuron 480 SCin the spray programme will provide a useful reduction of Rust Mites.
Maximum number of treatments: 2 per crop
Harvest interval: 14 days
Other specific restrictions: The maximum concentration must not exceed 300 ml product/500 liters water.
BLACKCURRANTS
For the control of Winter Moth.
Rate of Use: Apply 300 ml/ha in a minimum of 2000 liters of water.
Timing
Winter Moth: Apply when first flowers are about to open and repeat if necessary.
Maximum number of treatments: 2 per crop
Harvest interval: 14 days
Other specific restrictions: The maximum concentration must not exceed 300 ml of product/2000 litres water.
BRASSICAS
Brussels Sprout, Cabbage, Cauliflower, Broccoli (including Calabrese)
For the control of caterpillars.
Rate of Use: Apply 200 ml/ha in 500-1000 liters of water.
Timing
Apply as a protective spray at the onset of egg lay. A second application should be made after an interval of 3-4 weeks.
Maximum number of treatments: 2 per crop.
Harvest interval: 14 days
Other specific restrictions:
The maximum concentration must not exceed 200 ml of product/500 litres water.
MUSHROOMS
Sciarid flies:
Diflubenzuron 480 SC will control larvae of sciarid flies in mushroom growing facilities. DIFLUBENZURON 480 SC in the mushroom growing media will prevent the development of the larval stages of the sciarids. This effectively stops reproduction in the growing medium and prevents damage to the mushrooms. Because of its unique type of activity do not expect immediate reductions in adult flypopulations. Diflubenzuron 480 SC does not directly affect adults but kills the larvae in the growing medium.
Compost treatment:
Apply 0.6 to 0.8 L of Diflubenzuron 480 SC per 100 square meters to the compost by thorough incorporation. This is equivalent to 30 to 40 ppm active ingredient.
Casing treatment:
Apply 0.2 L of Diflubenzuron 480 SC in a minimum volume of 150 L of water per 100 square meters at the time of casing.
Post-casing drench: Apply 2 ml Diflubenzuron 480 SCin 2.5 liters of water per square meter as a drench to the finished casing.
(The above quantities are based on a normal casing weight of 1 tonne/30.5 sq m and will provide a dose of 30 ppm active ingredient.)
Latest application timing: Immediately after casing.
Maximum number of treatments: 1 per spawning.
Other specific restrictions: The maximum concentration must not exceed 2 ml product/2.5 liters water.
ORNAMENTAL PLANT PRODUCTION, NURSERY STOCK AND AMENITY TREES, SHRUBS AND HEDGES
For the control of caterpillars of Browntail Moth, Small Ermine Moths, Carnation Tortrix, Winter Moth, Lackey Moth.
Rates of Use
Browntail Moth: 6 ml/100 liters water.
Carnation Tortrix, Lackey, Small Ermine and Winter Moths: 13 ml/100 liters water.
Apply high volume in sufficient water to obtain thorough foliage cover.
Timing
Browntail Moth: Most effective control is achieved by a summer spray when eggs begin to hatch (usually in late July or early August). If necessary application may continue into early autumn but must be completed well before caterpillars stop feeding outside their winter nests. Diflubenzuron 480 SCmay also be applied in the spring after the caterpillars have finally left their nests and when there is a reasonable leaf canopy.
Carnation Tortrix: Apply from egg hatching to early instar stage, usually in late April - mid May and repeat 3-4 weeks later if necessary. Refer to pheremone trap catches as a guide for application timing.
Lackey and Winter Moths: Apply from egg hatching to early instar stage, usually in late April - mid May and repeat 3-4 weeks later if necessary.
Small Ermine Moths: Apply as the larvae begin to emerge from their overwintering shelters in April, but not before there is a reasonable leaf canopy. Repeat 3-4 weeks later if necessary.
Crop Tolerance: Diflubenzuron 480 SChas been used on a wide range of cultivars as a foliar spray without any evidence of crop damage. However, because of the large number of cultivars ofornamental plants grown, susceptibility should be checked by treating a small number of plants in the first instance.
Caution:
DO NOT spray protected plants in flower or with flower buds showing color as this may damage or discolour petals.
DO NOT use Diflubenzuron 480 SCas a compost drench or incorporated treatment for ornamental crops. Under certain cultural conditions crop damage has occasionally occurred.
Other specific restrictions: The maximum concentration must not exceed 13 ml product/100 liters water.
FORESTRY
For the control of the caterpillars of Oak Leaf Roller Moths, Pine Looper, Pine Beauty Moth, Winter Moths.
Ground Application
Rate of Use
150 ml/ha. Ensure good coverage of the foliage.
Aerial Application
Rate of Use
150 ml/ha in tank mix with a suitable adjuvant. Apply by suitable ULV spraying equipment in 1-10 litres/ha. Aerial applications should only be made by controlled droplet application/rotary atomiser equipment.
Timing
Oak Leaf Roller and Winter Moth: Apply in early spring when caterpillars are still at an early instar stage, but not before leaves begin to expand after bud burst.
Pine Beauty Moth: Apply from egg hatching to early instar, usually in May - early June.
Pine Looper: Apply from egg hatching to early instar stage, usually in August.
Maximum number of treatments: 1 per year.
Other specific restrictions: Aerial application is permitted when the wind velocity does not exceed an average of 18 knots and gusts do not exceed 20 knots.
The spray droplet spectra must be of a minimum volume median diameter (VMD) of 200 microns
VETERINARY - ANIMAL HOUSING, MANURE HEAPS AND REFUSE TIPS
For the control of the larval stages of Common House flies* and Stable flies in intensive livestock units and on manure and refuse heaps.
* This product should not be used continuously against flies in intensive or controlled environment animal units. If treatment in subsequent stocking cycles is required, use a product with a different active ingredient or a different control method (such as space sprays or baits).
Application
Apply Diflubenzuron 480 SCas a directed spray, using a knapsack sprayer with hand lance or, for large areas, a boom fitted with fan nozzles.
Treat all areas where manure or moist waste feed collects and flies breed such as dung pits, channels and trays, around and under grills and feed troughs, corners difficult to clean, wall footings etc.
Since Diflubenzuron 480 SCdoes not kill adult flies but breaks the breeding cycle by killing the larvae (maggots), the full effect of treatment may not be apparent for 2-3 weeks. Existing adult infestations should be controlled with a knockdown insecticide during this period.
"Fly-in" of adult flies from outside should be minimized by treating sources of infestation with Diflubenzuron 480 SC, or a "knock-down" insecticide used as necessary.
Note: Do not apply Diflubenzuron 480 SCdirectly to livestock.
Rate of Use
Apply 10 ml/10 m2 of treated surface and repeat at 5-6 week intervals. In systems where manure builds-up rapidly or is removed frequently:- apply 5 ml/10 m2 and repeat every 2-3 weeks.
Impervious surfaces should be wetted without run-off using, as a guide, a water volume of 1 liter water per 10 m2. Litter, manure and refuse heaps should be well wetted and will require a water volume of not less than 2 litres per 10 m2.
Timing
Best fly control is achieved when Diflubenzuron 480 SCis applied at the start of the season after houses have been cleared and before restocking. Treatment should be repeated every 5-6 weeks, or after mucking-out or when adult fly population begins to build-up. If Diflubenzuron 480 SCis used at the low rate of 5 ml/10 m2, treatment should be repeated every 2-3 weeks.
VETERINARY - OUTLETS
POULTRY - Deep Pit Houses - Treat droppings and other breeding areas, particularly at the start of the season when houses are first set and repeat every 5-6 weeks. If manure builds up rapidly, use more frequent applications at the lower dosage (RATE OF USE ABOVE) Broiler Houses - Treat litter immediately prior to stocking and repeat every 5-6 weeks if necessary.
PIGS - Treat all fly breeding areas in farrowing and weaner houses after cleaning and sterilizing, but prior to stocking. Repeat treatment after mucking-out, prior to restocking or every 5-6 weeks if necessary.
CATTLE - Treat closed buildings as for pigs. Control in open buildings will only be possible if all surrounding breeding sites are treated.
MANURE AND REFUSE HEAPS - Treat every 5 - 6 weeks to minimise breeding. Fresh material may need treating within this period.
Other specific restrictions: This product must not be applied directly to livestock.